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公开(公告)号：AU2007203687A1
公开(公告)日：2007-08-23
申请号：AU2007203687
申请日：2007-08-07
Applicant: QUALCOMM INC
Inventor： LUNDBY STEIN A , BAO GANG , RAZOUMOV LEONID
Abstract: An apparatus operative to transmit packet data via at least one of a first set of channels in a wireless communications system, the system supporting packet data transmissions and low delay data transmissions over a plurality of transmission channels. The apparatus comprising means for transmitting packet data via a set of packet data channels; means for transmitting control information associated with the packet data via a signalling channel, wherein the signalling channel is separate from the set of packet data channels, and wherein the control information identifies a target recipient of associated packet data; means for receiving data requests from a plurality of mobile units; means for determining a transmission schedule according to the data requests; means for assigning a priority level to each of the plurality of mobile units; and means for determining a traffic schedule among the plurality of mobile units based on the assigned priority level.
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公开(公告)号：BR0115760A
公开(公告)日：2006-05-02
申请号：BR0115760
申请日：2001-11-20
Applicant: QUALCOMM INC
Inventor： RAZOUMOV LEONID , HOLTZMAN JACK M
Abstract: A method (18) for scheduling packet data transmissions in a wireless communication system wherein a per-user Priority Function (PF) (24) is based on a channel condition indicated by a Rate Request Indicator (RRI). The method also considers fairness criteria dictated by predetermined Quality of Service (QOS) requirements. In one embodiment, the rate request indicator is a Data Rate Request (DRR). In another embodiment, the rate request indicator is Carrier-to-Interference (C/I) information. In the exemplary embodiment, the base station calculates a Priority Function (PF) for the multiple mobile users. Each PF is a function of the rate request indicator and the projected throughput of a given mobile user. The PF values allow the base station to schedule active mobile units having pending data. The scheduling produces an approximately equal share of the allocated transmission time to the multiple mobile stations.
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公开(公告)号：AU774932B2
公开(公告)日：2004-07-15
申请号：AU5899600
申请日：2000-06-28
Applicant: QUALCOMM INC
Inventor： LUNDBY STEIN A , RAZOUMOV LEONID
Abstract: The present invention is a novel and improved method and apparatus for control transmission energy. The present invention describes a closed loop power control system that operates in conjunction with a transmitter using orthogonal transmit diversity. In a first embodiment of the present invention, the receiver evaluates the signal to noise ratio (SNR) of the two components of the signal. A weighted sum of these two components emphasizing the weaker of the two signals is generated and used in the generation of the power control commands. In a second embodiment of the present invention, the SNR of the two component signals are calculated and two separate power control commands are generated based on a corresponding one of the calculated SNR values.
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公开(公告)号：BR0114861A
公开(公告)日：2004-06-22
申请号：BR0114861
申请日：2001-10-24
Applicant: QUALCOMM INC
Inventor： LUNDBY STEIN A , RAZOUMOV LEONID , BAO GANG
IPC: H04L29/08 , H04L1/00 , H04W48/20 , H04W72/04 , H04W72/14 , H04Q7/00 , H04B7/216 , H04J3/24 , H04J13/00 , H04J3/12
Abstract: An apparatus operative to transmit packet data via at least one of a first set of channels in a wireless communications system, the system supporting packet data transmissions and low delay data transmissions over a plurality of transmission channels. The apparatus comprising means for transmitting packet data via a set of packet data channels; means for transmitting control information associated with the packet data via a signalling channel, wherein the signalling channel is separate from the set of packet data channels, and wherein the control information identifies a target recipient of associated packet data; means for receiving data requests from a plurality of mobile units; means for determining a transmission schedule according to the data requests; means for assigning a priority level to each of the plurality of mobile units; and means for determining a traffic schedule among the plurality of mobile units based on the assigned priority level.
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95.发明专利
公开(公告)号：HK1056443A1
公开(公告)日：2004-02-13
申请号：HK03108619
申请日：2003-11-26
Applicant: QUALCOMM INC
Inventor： RAZOUMOV LEONID , LING FUYUN , LUNDBY STEIN
Abstract: Techniques for puncturing symbols in a communications system are disclosed. S symbols are received for a frame having a capacity of N symbols, with S being greater than N. P symbols need to be punctured so that remaining symbols fit into the frame. A number of puncture distances, D1 through DN, are computed based on S and P. A particular number of symbol punctures is determined for each computed puncture distance. P1 through PN symbol punctures are then performed at the distances of D1 through DN, respectively. For a more even distribution of the symbol punctures, each of the distances D1 through DN can be selected to be greater than or equal to a minimum puncture distance Dmin defined as Dmin=└S/P┘, where └┘ denotes a floor operator. The symbol punctures at each computed distance can be performed together or distributed with symbol punctures at other distances. In the alternative, an accumulator is configured to wrap around after it has been incremented to a value of S, each increment being of size P. A symbol index is incremented by one each time the accumulator is incremented by P, until the symbol index exceeds the value S. The process is advantageously begun with a puncture. Each time the accumulator wraps around, another puncture is performed. As another alternative, puncturing can be combined with symbol repetition.
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Patent Agency Ranking
公开(公告)号：BR0112578A
公开(公告)日：2003-12-30
申请号：BR0112578
申请日：2001-07-17
Applicant: QUALCOMM INC
Inventor： RAZOUMOV LEONID , LING FUNYUN , LUNDBY STEIN A
Abstract: Techniques for puncturing symbols in a communications system are disclosed. S symbols are received for a frame having a capacity of N symbols, with S being greater than N. P symbols need to be punctured so that remaining symbols fit into the frame. A number of puncture distances, D1 through DN, are computed based on S and P. A particular number of symbol punctures is determined for each computed puncture distance. P1 through PN symbol punctures are then performed at the distances of D1 through DN, respectively. For a more even distribution of the symbol punctures, each of the distances D1 through DN can be selected to be greater than or equal to a minimum puncture distance Dmin defined as Dmin=└S/P┘, where └┘ denotes a floor operator. The symbol punctures at each computed distance can be performed together or distributed with symbol punctures at other distances. In the alternative, an accumulator is configured to wrap around after it has been incremented to a value of S, each increment being of size P. A symbol index is incremented by one each time the accumulator is incremented by P, until the symbol index exceeds the value S. The process is advantageously begun with a puncture. Each time the accumulator wraps around, another puncture is performed. As another alternative, puncturing can be combined with symbol repetition.
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公开(公告)号：NO20031827A
公开(公告)日：2003-06-20
申请号：NO20031827
申请日：2003-04-24
Applicant: QUALCOMM INC
Inventor： LUNDBY STEIN A , RAZOUMOV LEONID , BAO GANG
CPC classification number: H04W72/1289 , H04L1/0002 , H04L1/0025 , H04W48/20
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公开(公告)号：NO20031826A
公开(公告)日：2003-06-20
申请号：NO20031826
申请日：2003-04-24
Applicant: QUALCOMM INC
Inventor： LUNDBY STEIN A , RAZOUMOV LEONID , BAO GANG , WEI YONGBIN
IPC: H04B7/26 , H04B7/005 , H04L12/56 , H04W28/22 , H04W52/16 , H04W52/26 , H04W52/28 , H04W52/32 , H04W52/34 , H04Q7/00
CPC classification number: H04W28/22 , H04L1/0002 , H04L1/0026 , H04W52/16 , H04W52/267 , H04W52/286 , H04W52/325 , H04W52/346
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公开(公告)号：BR0011910A
公开(公告)日：2002-06-18
申请号：BR0011910
申请日：2000-06-28
Applicant: QUALCOMM INC
Inventor： LUNDBY STEIN A , RAZOUMOV LEONID
Abstract: The present invention is a novel and improved method and apparatus for control transmission energy. The present invention describes a closed loop power control system that operates in conjunction with a transmitter using orthogonal transmit diversity. In a first embodiment of the present invention, the receiver evaluates the signal to noise ratio (SNR) of the two components of the signal. A weighted sum of these two components emphasizing the weaker of the two signals is generated and used in the generation of the power control commands. In a second embodiment of the present invention, the SNR of the two component signals are calculated and two separate power control commands are generated based on a corresponding one of the calculated SNR values.
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公开(公告)号：CA2426905A1
公开(公告)日：2002-05-23
申请号：CA2426905
申请日：2001-10-24
Applicant: QUALCOMM INC
Inventor： RAZOUMOV LEONID , BAO GANG , LUNDBY STEIN A
Abstract: In a wireless communication system (50) a method for combination transmissio n of packet data and low delay data. In one embodiment a parallel signaling channel provides a message to receivers (56, 58, 60) indicating a target recipient of packet data. The message also identifies the transmission channels used for packet data transmissions. Each receiver may then selectively decode only packets where the message identifies the receiver as a target recipient. The data packets stored in a buffer are ignored if the target recipient is another mobile unit. In one embodiment, the message is sent concurrently with the data packet on a parallel channel. In one embodiment, the message is punctured into the high rate packet data transmission.
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